Departurtes

[RF Lighting]

 

[duncanhead]

Who installed it tho?

what the extra cpc or the wanda lead?

 

[Spark123]

The clamp to the DNO cable?

 

[duncanhead]

nice one. but not.... (I used to work for the CEGB....)

 

[duncanhead]

The clamp to the DNO cable?

me...

 

[Spark123]

I take it that the cable is PILC?
You are not meant to attach BS951 clamps to cables - they are made for hard metal pipes.

 

[RF Lighting]

And there is a perfectly good sweated earth already there anyway

 

[duncanhead]

I take it that the cable is PILC?
You are not meant to attach BS951 clamps to cables - they are made for hard metal pipes.

I possibly may assume so (PILC), certainly it's lead.... and this supply feed is certainly "harder" than any metal pipe - ie 15 or 22mm copper, so I've double bonded the incomming DNO feed, it can only help....

 

[duncanhead]

And there is a perfectly good sweated earth already there anyway

it's only 6-8 mm2 (estimated), so the extra 10mm2 will do no harm at all, it's to utilise the Ze (in case of an "issue")

 

[GaryMo]

I possibly may assume so (PILC), certainly it's lead.... and this supply feed is certainly "harder" than any metal pipe - ie 15 or 22mm copper, so I've double bonded the incomming DNO feed, it can only help....

....or go bang!

 

[Spark123]

Could squish the lead into the copper and make it go bang too.

Arghhh GaryMo

 

[GaryMo]

lol though the OP should really be taking note.

 

[JonoPashley]

You are dangerous please never touch anything electrical again.

 

[RF Lighting]

And there is a perfectly good sweated earth already there anyway

it's only 6-8 mm2 (estimated), so the extra 10mm2 will do no harm at all, it's to utilise the Ze (in case of an "issue")

It would quite easily clear any fault with out your dangerous and illegal addition.

Oh and there you go again. Trying to sound clever by using technical terms, but getting it oh so wrong

 

[duncanhead]

I possibly may assume so (PILC), certainly it's lead.... and this supply feed is certainly "harder" than any metal pipe - ie 15 or 22mm copper, so I've double bonded the incomming DNO feed, it can only help....

....or go bang!

where may it "go bang"?
(with RCDs and RCBOs inplace at the CU), at the local DNO distribution site? The PSC is only 0.56 KA, so with the proposed protection it'll only be a few ms before "cut off" - at "my end", the rated DNO feeds are "good" for several 1000s Amps before something *serious* occurs and very prior to that fault protection will cut in..... copper takes quite a few seconds to "achieve melt down" (and lots of Joules...) , we are not talking about Chernobyl here....